The bigger the drought, the bigger the flood. That certainly held true over the past year for the eastern half of Australia, with flooding rains ending the worst drought in history. The signs that the weather was turning began in 2009, when a deluge in the tropical north set the great desert rivers flowing through Central Australia. For the first time in years, the water flowed all the way to Lake Eyre, the huge salt pan in the dead heart of the continent. ABC TV reporter Paul Lockyer covered
In 1886 the Aboriginal Protection Board helps draft HalfCaste Act in Victoria, forcing Indigenous people off reserves and to assimilate with Europeans. As reserves close, Indigenous people are forcibly moved to Lake Tyres Mission.
Whales sharks come to the Galapagos in large numbers at the same time every year. Why they do this is still a mystery. It is not to feed but it could be that they come to the islands to give birth. Yet no whale pups have been seen.
It might sound bizarre, but one of the Galapagos islands is so remote that it has allowed a species of dandelion to evolve independent of other competing species. These dandelions grow so tall that they resemble huge rainforest trees.
Sunlight hitting rain can give off different colours due to a splitting of wavelengths during refraction. Experiments can be done to explain the visible spectrum using a simple prism to display refraction.
Stanley is sent out on his first day of work at Camp Green Lake. Interwoven flashbacks reveal the origin of the Yelnats family curse and his great-great grandfather's broken promise to a fortune teller.
CSIRO's Hayley Norman and Damien Mowat explain how they identified anameka as one of the most nutritious shrubs for sheep to eat, using scientific tools as well as monitoring the preferences of the animals.
Flinders University's Emma deCourcy-Ireland and Lachlan Palmer explain how they identified grains that were high in iron and zinc, using X-ray fluorescence Mass spectrometry, and why those nutrients are important.
Questacon's Sarah Clark demonstrates the principle of "protostorming" at the National Science and Technology Centre, quickly developing as many prototypes as possible of objects that move in the wind, using simple materials, and then refining those designs.
Flinders University's Stuart Wildy and Curtis Merrett reveal their prototype for the 2017 Bridgestone World Solar Challenge, describing the process of designing a solar-powered car, and testing out the technologies on a modified golf cart.
Edward reveals he knew they were breaking into Jim's house, and why he went along with the plan.Kim is upset they let Edward take the blame and fights with Jim about telling the truth. Edward trashes the bathroom in a fit of anger. Over dinner that evening, Bill Boggs asks Edward a hypothetical question regarding the ethical response to a situation. Edward's answer is kind but legally incorrect. The scene raises questions about individual accountability and behavioural ethics.
Critique the "sense and nonsense" of the global $100 billion vitamin and supplement industry with Derek Muller in Vitamania. Then test your knowledge of importance of vitamins in our diets and the history of the business.